How fast are data centres growing in electricity demand?: IEA data from its April 2026 report shows global data centre electricity demand grew 17% in 2025 — six times the 3% overall global electricity growth rate. AI-focused facilities grew approximately 50%. The IEA projects total tech capex will rise from $400B to $700B in 2026.Source: IEA
How much are tech companies spending on data centres in 2026?: Five major tech companies collectively exceeded $400 billion in capex in 2025. The IEA projected that figure will rise a further 75% in 2026 to approximately $700 billion. Conditional SMR power agreements for data centres jumped from 25 GW to 45 GW between end-2024 and April 2026.Source: IEA
How much LNG did the Strait of Hormuz closure cut off?: The IEA quantified the Hormuz disruption at over 2 bcm per week of LNG supply, with approximately 12 bcm accumulated since the strait was effectively closed from 1 March 2026. No Qatari LNG had transited since 28 February 2026.Source: IEA / Lowdown
What did the IEA say about the Hormuz closure in its Q2 2026 Gas Market Report?: The IEA's Q2-2026 Gas Market Report revised its baseline from a mid-year Hormuz reopening to a multi-year disruption scenario. It joined the IMF and World Bank in quantifying accumulated LNG loss at approximately 12 bcm since 1 March 2026, or over 2 bcm per week.Source: IEA Q2-2026 Gas Market Report
Does the IEA have any power to force countries to release oil reserves?: No. The IEA can coordinate and recommend strategic petroleum reserve releases among its 31 member countries, but it has no enforcement powers and cannot compel action. Members must agree collectively; the IEA's role is advisory and coordinative.
What did the IEA May 2026 Oil Market Report find about global oil stocks?: The May 2026 OMR (published 13 May) recorded a global observed inventory draw of 246 million barrels across March and April 2026, with OECD on-land stocks falling 146 million barrels in April alone. It projected Q2 2026 crude throughputs would decline 4.5 mb/d to 78.7 mb/d.Source: IEA Oil Market Report
Why does the IEA say oil markets will stay in deficit even if Hormuz reopens?: The IEA's May OMR projects a supply deficit through Q4 2026 even under a June Hormuz reopening scenario, because 246 million barrels have already been drawn from global stocks and replenishment at current production rates cannot close the gap before Q4.Source: IEA Oil Market Report
How wide was the April 2026 Brent oil price swing?: April 2026 Brent had an intramonth trading range of $50 per barrel, which the IEA May OMR described as 'unparalleled' in the benchmark's recorded history, driven by Hormuz closure uncertainty and the Iran-conflict price shock.Source: IEA Oil Market Report
What is the IEA's role in the 2026 oil market crisis?: The IEA coordinates strategic petroleum reserve releases among its 31 OECD members and publishes the monthly Oil Market Report that serves as the authoritative supply and inventory benchmark for governments, traders, and regulators. It has no enforcement powers but its data governs collective emergency response calculations.Source: IEA
How much oil has been lost from global inventories since the Hormuz crisis began?: The IEA's May 2026 OMR recorded a 246 million barrel global stock draw in March-April alone. Cumulative Hormuz LNG losses exceeded 12 bcm since 1 March 2026, and total crude supply losses surpassed 1 billion barrels by 14 May.Source: IEA Oil Market Report

Background

The International Energy Agency (IEA) is the OECD's energy security body, founded in 1974 following the Arab oil embargo, with 31 member countries and headquarters in Paris. Its core mandate covers collective response to supply emergencies, including coordinating strategic petroleum reserve releases.

In April 2026 the IEA simultaneously dominated two major stories. On data centres: its 16 April report showed global data centre electricity demand grew 17% in 2025 — six times the 3% overall global electricity growth rate — with AI-focused facilities growing approximately 50%. Five major tech companies collectively exceeded $400 billion in capex in 2025, a figure the IEA projected would rise a further 75% in 2026 to approximately $700 billion. Conditional agreements for small modular reactor (SMR) power for data centres jumped from 25 GW at end-2024 to 45 GW by April 2026. The IEA data was also cited to confirm that UK electricity costs run at roughly four times US levels, a key reason OpenAI paused its Cobalt Park build.

On the Iran oil shock: the IEA joined the IMF and World Bank in a joint statement describing the Hormuz disruption as "substantial, global, and highly asymmetric", quantifying the LNG loss at over 2 bcm per week and approximately 12 bcm accumulated since 1 March 2026. Its April Oil Market Report became the benchmark figure European regulators and trade desks use for injection-season planning. The IEA has no enforcement powers and cannot compel reserve releases, a constraint that has drawn criticism as the Hormuz closure stretched from days into weeks.

The IEA's May 2026 Oil Market Report (published 13 May 2026) is the canonical data reference for European oil markets Update #1. The report recorded a global observed inventory draw of 246 million barrels across March and April 2026 alone — the steepest two-month draw in the agency's history. OECD on-land stocks fell by 146 million barrels in April alone. The IEA projected crude throughputs would decline 4.5 million bpd in Q2 2026 to 78.7 million bpd.

The May OMR also characterised April's Brent intramonth trading range as "unparalleled" at $50/BBL — the widest swing in the benchmark's recorded history. The IEA projects the market will remain in deficit through Q4 2026 even if Hormuz flows resume in June, a projection that directly underpins the sell-side consensus of $89-$90 Q4 Brent across EIA and Goldman Sachs forecasts.

For European refiners, the IEA's inventory data is the injection-season benchmark. An OECD on-land stock deficit of this magnitude entering Q3 means European storage operators face a compressed replenishment window. The IEA numbers inform both the EU's emergency reserve response calculations and the private-sector hedging models used by ARA-region trading houses.

Source Material

Oil Market Report — May 2026 Official website International Energy Agency